diff --git a/src/blackmisc/context.h b/src/blackmisc/context.h
index 9134a1eda..55c833b69 100644
--- a/src/blackmisc/context.h
+++ b/src/blackmisc/context.h
@@ -93,8 +93,8 @@ namespace BlackMisc
          */
         template <class T> bool hasObject(const QString &name = T::staticMetaObject.className()) const
         {
-            QObject *qobj = getQObjectNothrow(name);
-            return qobj && qobject_cast<T *>(qobj);
+            const QObject *qobj = getQObjectNothrow(name);
+            return qobj && qobject_cast<const T *>(qobj);
         }
 
         /*!